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| author |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-09-20 22:02:17 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-11-23 10:37:35 -0800 |
| commit | 1c97be677f72b3c338312aecd36d8fff20322f32 (patch) | |
| tree | 805643267b5d6cc61c8dd168c4610c554cd76a68 /include/linux/list_nulls.h | |
| parent | rcu: Add transitivity to remaining rcu_node ->lock acquisitions (diff) | |
| download | linux-dev-1c97be677f72b3c338312aecd36d8fff20322f32.tar.xz linux-dev-1c97be677f72b3c338312aecd36d8fff20322f32.zip | |
list: Use WRITE_ONCE() when adding to lists and hlists
Code that does lockless emptiness testing of non-RCU lists is relying
on the list-addition code to write the list head's ->next pointer
atomically. This commit therefore adds WRITE_ONCE() to list-addition
pointer stores that could affect the head's ->next pointer.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/list_nulls.h')
0 files changed, 0 insertions, 0 deletions